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South Wyacondah Ditch Bridge


South Wyacondah Ditch Bridge on Timber Avenue

Photo taken by Chris Gonnerman in April 2012

License: Creative Commons Attribution-Share-Alike (CC BY-SA)


BH Photo #229155



Through truss bridge over South Wyacondah Ditch on Timber Avenue
Davis County, Iowa
Intact but closed to all traffic
Built at an unknown date. Possible work or event occured, ca. 1950
7 panel pin-connected Pratt through truss with M-frame portal bracing
Span length: 126.0 ft.
Total length: 126.0 ft.
Deck width: 16.1 ft.
Vertical clearance above deck: 17.7 ft.
Approximate latitude, longitude
+40.59936, -92.26982   (decimal degrees)
40°35'58" N, 92°16'11" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/561779/4494539 (zone/easting/northing)
Quadrangle map:
Land survey
T. 67 N., R. 12 W., Sec. 17
Average daily traffic (as of 2002)
Inventory numbers
IA 132890 (Iowa bridge number)
BH 13330 (Bridgehunter.com ID)
Inspection report (as of June 2009)
Overall condition: Poor
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Fair (5 out of 9)
Sufficiency rating: 23.3 (out of 100)
View more at BridgeReports.com

Update Log 

  • April 5, 2016: Updated by Nathan Holth: 1950 is a joke, reworded to mention unknown build date, with possible 1950 event.
  • March 31, 2015: Updated by Dave King: Added categories "A-frame portal", "Lattice Railing"
  • April 6, 2012: Updated by Luke Harden: Added categories "7-panel truss", "Pin-connected"
  • April 6, 2012: Updated by Chris Gonnerman: Updated bridge truss description (7 panel, pin-connected)
  • January 23, 2012: Updated by Jason Smith: This bridge is a Pratt through truss



South Wyacondah Ditch Bridge
Posted April 7, 2012, by Clark Vance (cvance [at] dogmail [dot] com)

Perhaps the 1950 is a relocation date.

South Wyacondah Ditch Bridge
Posted April 6, 2012, by Chris Gonnerman (chris [at] gonnerman [dot] org)

I question the construction date on this bridge. Pin-connected Pratt truss bridges in this area generally have construction dates closer to 1900, give or take a decade, and this bridge appears to be as old as any of them.